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| author | Christian Lamparter <chunkeey@gmail.com> | 2019-12-05 01:25:33 +0100 |
|---|---|---|
| committer | Petr Štetiar <ynezz@true.cz> | 2019-12-19 22:41:57 +0100 |
| commit | 5ce72009ac11ebe6f83a7a4465c7371008605bda (patch) | |
| tree | 03d57f4747046d44e7c6bb70228cdef0342ae977 | |
| parent | 9e7a8beb9c0ed3105f86465bc64dfc79bae34d1f (diff) | |
| download | upstream-5ce72009ac11ebe6f83a7a4465c7371008605bda.tar.gz upstream-5ce72009ac11ebe6f83a7a4465c7371008605bda.tar.bz2 upstream-5ce72009ac11ebe6f83a7a4465c7371008605bda.zip | |
ipq806x: increase drive-strength for pinmux
Increase drive-strength from
https://lore.kernel.org/patchwork/patch/626885/
2mA drive strength is not enough when we connect multiple i2c devices
on the bus with different pull up resistors.
This issue was detected when multiple i2c devices
connected on the other side of level shifters on Linaro sensor board.
Maxing up to 16mA made i2c much stable.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
| -rw-r--r-- | target/linux/ipq806x/files-4.19/arch/arm/boot/dts/qcom-ipq8064.dtsi | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/target/linux/ipq806x/files-4.19/arch/arm/boot/dts/qcom-ipq8064.dtsi b/target/linux/ipq806x/files-4.19/arch/arm/boot/dts/qcom-ipq8064.dtsi index efaa6abd78..17e8a62381 100644 --- a/target/linux/ipq806x/files-4.19/arch/arm/boot/dts/qcom-ipq8064.dtsi +++ b/target/linux/ipq806x/files-4.19/arch/arm/boot/dts/qcom-ipq8064.dtsi @@ -633,7 +633,7 @@ mux { pins = "gpio3"; function = "pcie1_rst"; - drive-strength = <2>; + drive-strength = <12>; bias-disable; }; }; @@ -642,7 +642,7 @@ mux { pins = "gpio48"; function = "pcie2_rst"; - drive-strength = <2>; + drive-strength = <12>; bias-disable; }; }; @@ -651,7 +651,7 @@ mux { pins = "gpio63"; function = "pcie3_rst"; - drive-strength = <2>; + drive-strength = <12>; bias-disable; output-low; }; |